Apparatus for shaping glassware



May 8, 1928.

1,668,993 D. P. WEAVER APPARATUS FOR SHAPING GLASSWARE Filed Feb. 2. 1926 Fz a Z 2am FM aver J y s J u F A .7

ward movement of the casing 7, the valve member 9 interrupts communication be tween the casing and the passages 12 and 13.

lhe external configuration ,of the mouth of the jar is imparted by a neck ring 16 which is formed in sections and bin ed tog'ether at 17 and which is engaged y the mold sections when closed and maintained. accurately positioned thereby. The neck ring 16 may be manually lifted. to transfer the oarison to the blow mold, and the sections thereof opened to disengage the blown jar, by handles 18..

The internal configuration is imparted to the mouth. of the parison and an initial blow opening is formed therein by a two-part plunger, comprising a member 19 of bo rlike structure and a plate mounted for vertical movement therein. Th6 member 19 is mounted for vertical movement in a recess 21 orovided in the base plate 4.- and is -secured to the upper end of a sleeve which extends through the base plate Q and the table and is slidably mounted in a bearing The sleeve 22 is'raised and lowered by an arm which is tired to a roclrshat't 25 and which pivotally engages a collar 26 which is adjustably secured to the lower end of. the sleeve The plate 20 of the plunger is of hollow coastroction' and is carried by a tubular stem 2? which extends slidably through the St; vs The stem 2? and p. to 20 caried thereby raised and lowered inde pendently the memborlt by an arm 28 which is fixed to a rock shatt and nnich pivotally engages a collar 30 adjustebly se ed to the lower end of the stem 2"?1 he plate 20 is cooled by a cooling medium oduced through the tube-9f? and which escapes through a pipe 8i mounted in a head 3% carried by the lower sea of the stem 27'.

" conclusion o the settle blowing cavity the mold charge a members and 26 (Fig. l}-

is erla l the grl ss is freed from the it y elevating late still turther separation Oil the lrom l 1 presumably d by a sliding of the s on. the

. the latter is raised. "llhis rais the plunger 20 stretches the slain ed glass lining the cavity and causes the slam to further set and support the glass above it when plate is The plate 26 is then of the mold closed by be 2) and .counterblowi air s air is supplied th through a nipple 42. Sufficient clearance is provided around the plate 20 to permit counterblowing air to enter the cavity formed in the glass and blow the charge in the blanlt mold= As soon as the parison is completely blown, the valve casing is raised permitting the valve 36 to descend under the action of gravity and interrupt the How of air, The bafie plate 33 is then raised and the internal mouth finishing member 19., to gether With the plate 20, are lowered out of engagement with the parison. The mold is then opened and the parison is trans terred manually to the blow mold by the neck ring or external mouth finishing members 16 which remain in engagement with the were and which are released by the opening of the mold sections.

The illustrated embodiment of the invem tio may he modified in construction and arrangement without departing from the scope of the invention. as set forth 1n the appended claims,

I claim as my invention:

1. Apparatub for shaping a parison "for e x W 1 1. l the were arm as ltial b.

gla said. peeing to free glass from said pl and means for comiterblovvio said. charge in hold.

Kpperatus for .3

"south ware COL L finishing tarsal moo..-

ructure mounted si old, a pie" "crates tor veitict 1,a as,99a 3 compactin a charge of molten glass in said through said internal member, and means mold and etween said external and internal for causing a circulatiqn of a cooling memembers to form the finish of the parison dium in said late. 1 10 and an initial blow onening therein, means Signed at alem, N. J., this 27 day of i for independently raising and lowering said Jan, 1926.

internal member and said plate, means for supplying counter-blowing air to said mold DAVID P. WEAVER. 

